Ketti Gallian

Ballet star Pete "Petrov" Peters arranges to cross the Atlantic aboard the same ship as the dancer he's fallen for but barely knows... (imdb)

Marie is kidnapped and taken aboard ship, then thrown off at Yucatan. She winds up singing in a cafe in the Panama Canal zone. There she gets involved in a plot to destroy the canal and runs into American intelligence officer Crawbett. (imdb)

Cesare Campo is a hard-riding and hard-loving Argentine gaucho. Yvonne LaMarr is a famous Parisian singer on her way to play an engagement in a Buenos Aires cabaret. THe plane she is flying in is forced to land on the Pampas. Campo and his riders take the passengers to a hotel. Yvonne and Campo quickly fall in love, but she had to leave to make her singing engagement in Buenos Aires. Campo follows her and discovers that his horse that was the favorite to win the Big Race has been stolen. (imdb)